Meningioma MRI: Difference between revisions

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==Overview==
==Overview==
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[[File:Craniocervical-junction-meningioma.jpg|400px|thumb|left|MRI showing meningioma in the craniocervical junction [https://radiopaedia.org/articles/meningioma?lang=us source:Case courtesy of Dr Mohammad Taghi Niknejad, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. ]]]
[[File:Craniocervical-junction-meningioma.jpg|400px|thumb|left|MRI showing meningioma in the craniocervical junction [https://radiopaedia.org/articles/meningioma?lang=us source:Case courtesy of Dr Mohammad Taghi Niknejad, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. ]]]
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[[File:Multiple-meningiomas-1.jpg|400px|thumb|left|MRI showing multiple meningiomas [https://radiopaedia.org/articles/meningioma?lang=us source:Case courtesy of Dr Paresh K Desai , <a href="https://radiopaedia.org/">Radiopaedia.org</a>. ]]]
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[[File:Meningioma-with-dural-tail.jpg|400px|thumb|left|MRI showing meningioma with a dural tail [https://radiopaedia.org/articles/meningioma?lang=us source:Case courtesy of A.Prof Frank Gaillard, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. ]]]
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[[File:Intraventricular-meningioma-third-ventricle-1.jpg|400px|thumb|left|MRI showing a meningioma in the third ventricle [https://radiopaedia.org/articles/meningioma?lang=us source:Case courtesy of A.Prof Frank Gaillard, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. ]]]
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Latest revision as of 14:38, 10 September 2019

Meningioma Microchapters

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Patient Information

Overview

Historical Perspective

Classification

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Differentiating Meningioma from other Diseases

Epidemiology and Demographics

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Diagnosis

Diagnostic Study of Choice

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Physical Examination

Laboratory Findings

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MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Ifeoma Odukwe, M.D. [2] Haytham Allaham, M.D. [3]

Overview

MRI with gadolinium is the investigation of choice for the diagnosis of meningioma. On MRI, meningioma is characterized by a homogeneous, well circumscribed, and extra-axial mass with a broad dural base. Other findings on MRI suggestive of meningioma include CSF vascular cleft sign, dural tail sign, and central necrosis or calcification that do not enhance. Meningiomas may appear different on T1 and T2-weighted sequence but with a few similarities.

MRI

Head MRI may be helpful in the diagnosis of meningioma. Findings on MRI suggestive of/diagnostic of meningioma include:[1]

  • On T1-weighted sequence:
  • Isointensity to slight hypointensity relative to grey matter
  • Extensive dural thickening in meningioma en plaque
  • Uniform low signal intensity in microcystic meningiomas
  • On T2-weighted sequence:
  • Isointensity to slight hyperintensity relative to grey matter
  • Calcification showing as areas of low signal intensity
  • High signal intensity in microcystic meningiomas

Gallery

MRI showing meningioma in the cerebellopontine angle source:Case courtesy of A.Prof Frank Gaillard, <a href="https://radiopaedia.org/">Radiopaedia.org</a>.


MRI showing cystic meningioma source:Case courtesy of A.Prof Frank Gaillard, <a href="https://radiopaedia.org/">Radiopaedia.org</a>.


MRI showing meningioma in the craniocervical junction source:Case courtesy of Dr Mohammad Taghi Niknejad, <a href="https://radiopaedia.org/">Radiopaedia.org</a>.


MRI showing multiple meningiomas source:Case courtesy of Dr Paresh K Desai , <a href="https://radiopaedia.org/">Radiopaedia.org</a>.


MRI showing meningioma with a dural tail source:Case courtesy of A.Prof Frank Gaillard, <a href="https://radiopaedia.org/">Radiopaedia.org</a>.


MRI showing a meningioma in the third ventricle source:Case courtesy of A.Prof Frank Gaillard, <a href="https://radiopaedia.org/">Radiopaedia.org</a>.


References

  1. Watts J, Box G, Galvin A, Brotchie P, Trost N, Sutherland T (2014). "Magnetic resonance imaging of meningiomas: a pictorial review". Insights Imaging. 5 (1): 113–22. doi:10.1007/s13244-013-0302-4. PMC 3948902. PMID 24399610.


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